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EP4119915B1 - Dispositif de simulation pour la simulation d'assemblage vissé d'un outil de vissage - Google Patents

Dispositif de simulation pour la simulation d'assemblage vissé d'un outil de vissage Download PDF

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Publication number
EP4119915B1
EP4119915B1 EP22178966.2A EP22178966A EP4119915B1 EP 4119915 B1 EP4119915 B1 EP 4119915B1 EP 22178966 A EP22178966 A EP 22178966A EP 4119915 B1 EP4119915 B1 EP 4119915B1
Authority
EP
European Patent Office
Prior art keywords
nut
spindle
rotation
brake
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP22178966.2A
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German (de)
English (en)
Other versions
EP4119915A1 (fr
Inventor
Benjamin Maenz
Gerald Neumann
Jochen Schneider
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kistler Holding AG
Original Assignee
Kistler Holding AG
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Filing date
Publication date
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Publication of EP4119915A1 publication Critical patent/EP4119915A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00—Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/14—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers
    • B25B23/147—Arrangement of torque limiters or torque indicators in wrenches or screwdrivers specially adapted for electrically operated wrenches or screwdrivers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
    • G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
    • G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed

Definitions

  • the invention relates to a simulation device for the screw case simulation of a screwing tool according to the preamble of the independent claim.
  • the invention also relates to a method for carrying out the screw case simulation of a screwing tool using the simulation device according to the preamble of the independent claim.
  • a screwing tool is both a motor-driven screwing tool and a hand-operated torque wrench.
  • the screwing tool can be activated and the activated screwing tool rotates around a rotation axis, exerting a torque on a connecting element.
  • the connecting element has a thread and is a screw, a nut, etc.
  • the connecting element is used to connect components.
  • the connection is made by a clamping force between the components.
  • the clamping force ensures that the components can be used under maximum operating forces.
  • the torque exerted by the activated screwing tool is used to generate the clamping force.
  • the screwing tool increases the torque exerted over time and/or increases the torque exerted over the angle of rotation.
  • the increase in the torque exerted occurs up to a clamping force-specific target torque and/or up to a clamping force-specific target angle of rotation.
  • the target torque and/or the target angle of rotation is/are predefined and adjustable on the screwing tool.
  • the target torque and/or the target angle of rotation is/are also referred to below as the target size.
  • the screwing tool is equipped with a signal. As soon as the set target value is reached, the screwing tool deactivates the application of the torque.
  • the signal can work according to different functional principles. For example, a folding wrench automatically stops the application of the torque when the target value is reached. A cracking wrench automatically triggers an acoustic or optical signal when the target value is reached. An indicating screwing tool shows the currently applied torque and/or the current target angle of rotation on a scale or an electronic screen.
  • Such a screwing tool is used in many industrial manufacturing processes. To ensure that the screwing tool actually produces the set target size, the performance of the screwing tool is checked at regular intervals.
  • the VDI/VDE 2647 guideline from February 2013 specifies what should be tested and how. Testing the performance of the screwing tool is called screwing simulation.
  • the screwing simulation is carried out using a simulation device that has a test connection element, a brake unit and a measuring unit.
  • the screwing tool is coupled to the simulation device via the test connection element.
  • the test connection element can be rotated about an axis of rotation.
  • the brake unit and the test connection element are mechanically connected to one another.
  • the measuring unit is arranged between the test connection device and the brake unit.
  • the measuring unit has a torque sensor and an angle of rotation sensor.
  • the screwing tool coupled to the simulation device is activated and applies a torque to the test fastener.
  • the applied torque causes the test fastener to begin rotating around the axis of rotation.
  • the braking unit is activated and brakes the test fastener.
  • the torque sensor measures the torque and the angle sensor measures the angle of rotation by which the test fastener rotates around the axis of rotation.
  • Such a simulation device is known from the document WO2016/103150A1 known.
  • the brake unit has a brake disc and brake pads.
  • the brake disc is mechanically connected to the test connection element, the brake pads are fixed in place.
  • the brake unit functions hydraulically and has a hydraulic pump and brake pistons.
  • the hydraulic pump supplies the brake pistons with brake fluid, the loaded brake pistons act in frictional engagement with the brake disc and brakes the test connection element.
  • the simulation facility for the screw case simulation of the font WO2016/103150A1 is also available as a font WO2016/103147A1 published.
  • the writing US5886246A1 discloses a simulation device for screw joint simulation.
  • the writing CN112556922A1 refers to another simulation device for screw joint simulation, where a screwing tool coupled to the simulation device and activated applies a torque set on the screwing tool to a test connection element, causing the test connection element to rotate about an axis of rotation.
  • the rotating test connection element interacts with a spindle and a nut attached to the spindle to apply pressure to a disk pack.
  • a torque transducer measures the torque exerted by the screwing tool. To uncouple the screwing tool from the test connection element again, the screwing tool is deactivated and braked by the disk pack.
  • the object of the present invention is to provide a cost-effective simulation device for the screw case simulation of a screwing tool.
  • the invention relates to a simulation device for the screwing simulation of a screwing tool as defined in claim 1.
  • the invention also relates to a method for carrying out the screw case simulation of a screwing tool as defined in claim 8.
  • the simulation device according to the invention no longer requires a hydraulic brake unit, which is cost-effective. Instead, the torque exerted by the screwing tool is absorbed by a converter unit and converted into a braking force. This braking force is applied to the brake unit.
  • the Fig. 1 to 6 show a longitudinal section through a preferred embodiment of the simulation device 1 for the screwing simulation of a screwing tool 2.
  • the longitudinal section is made along a rotation axis Z.
  • the Fig. 2a, 2b, 3a, 3b , 4a and 4d show enlarged sections of the Fig. 1 to 6 .
  • the screwing tool 2 is a motor-driven screwing tool or a hand-operated torque wrench.
  • the screwing tool 2 can be activated and the activated screwing tool 2 rotates continuously and/or discontinuously around the axis of rotation Z, depending on the screwing case, and in doing so exerts a torque M.
  • the screwing tool 2 increases the applied torque M over time and/or it increases the applied torque M over the angle of rotation.
  • the increase in the applied torque M occurs up to a target torque and/or up to a target angle of rotation.
  • the target torque and/or the target angle of rotation is/are predefined and adjustable on the screwing tool 2.
  • the target torque and/or the target angle of rotation is/are also referred to below as the target value S.
  • the screwing tool 2 is equipped with a signal. As soon as the set target size S is reached during the screwing simulation, the screwing tool 2 deactivates the application of the torque M.
  • the signal can work according to different functional principles.
  • the screwing tool 2 can be a folding wrench, which automatically bends when the target torque is reached.
  • the screwing tool 2 can be a cracking wrench, which automatically gives an acoustic or optical signal when the target torque is reached.
  • the screwing tool 2 can be an indicating screwing tool, which indicates the applied torque M on a scale or an electronic screen.
  • the essential components of the simulation device 1 are a test connection unit 11, a braking unit 12, a measuring unit 13, a converter unit 14 and a holding unit 15.
  • the simulation device 1 has a housing 10.
  • the housing 10 is made up of several parts, with an upper housing part 10.1 and a housing base 10.2. On the upper housing part 10.1 there is a housing end close to the screwing tool, and on the housing base 10.2 there is a housing end far from the screwing tool.
  • the housing 10 is hollow-cylindrical and extends along the axis of rotation Z.
  • the housing 10 has a cavity. The cavity extends from the upper housing part 10.1 to the housing base 10.2.
  • the housing 10 has several functions, for example it protects the essential components of the simulation device 1 from mechanical damage, and it also offers the simulation device 1 mechanical stability against deflection along the axis of rotation Z and twisting around the axis of rotation Z during the screw joint simulation.
  • the test connection unit 11 has the function of enabling coupling of the screwing tool 2 with the simulation device 1 for the screw joint simulation.
  • the test connection unit 11 is cylindrical and extends along the rotation axis Z.
  • the test connection unit 11 has a test connection element 11.1 and a rotating body 11.2.
  • the test connection element 11.1 and the rotating body 11.2 are preferably made in one piece.
  • the test connection element 11.1 is arranged at the end of the housing upper part 10.1 closest to the screwing tool.
  • the test connection element 11.1 is accessible from the outside through an opening in the housing upper part 10.1.
  • the test connection element 11.1 is standardized and is, for example, a square.
  • the screwing tool 2 is coupled to the simulation device 1 via the test connection element 11.1.
  • the coupling is detachable.
  • the rotating body 11.2 is arranged so that it can rotate in the cavity of the housing upper part 10.1.
  • the brake unit 12 is arranged in the cavity of the upper housing part 10.1.
  • the brake unit 12 has several brake disc elements 12.1, a brake piston 12.2 and several brake spring elements 12.3.
  • the brake unit 12 has the function of braking the torque M exerted by the screwing tool 2 during the screwing simulation.
  • the brake disc elements 12.1 are arranged closer to the screwing tool 2 and the brake piston 12.2 is arranged further away from the screwing tool 2.
  • the brake disc elements 12.1 have several first brake disc elements attached to the upper housing part 10.1 and several second brake disc elements attached to the rotating body 11.2.
  • the brake disc elements 12.1 are ring-shaped. Along the axis of rotation Z, they are arranged alternately to one another.
  • the brake piston 12.2 is arranged on the upper housing part 10.1.
  • the brake piston 12.2 has an end remote from the screwing tool and an end close to the screwing tool.
  • the brake piston is connected to the end close to the screwing tool. 12.2 in direct mechanical contact with the brake disc elements 12.1.
  • the brake piston 12.2 can be subjected to a braking force F via the end remote from the screwing tool (see Fig. 3 and 4 ).
  • the brake piston 12.2, which is subjected to the braking force F, is movable along the axis of rotation Z in the direction of the screwing tool 2.
  • the brake piston 12.2, which is subjected to the braking force F, brings the brake disk elements 12.1 into frictional contact.
  • the brake spring elements 12.3 are arranged in the cavity of the housing pot 10.2 at the end of the housing remote from the screwing tool.
  • the brake spring elements 12.3 are fastened in the housing pot 12.2.
  • the brake spring elements 12.3 are preferably disc springs.
  • the brake spring elements 12.3 can be compressed along the axis of rotation Z.
  • a different number of brake spring elements 12.3 and/or brake spring elements 12.3 with different stiffness are arranged in the housing pot 10.2.
  • the housing pot 10.2 has a quick-release fastener such as a bayonet fastener, etc.
  • the measuring unit 13 is arranged in the cavity of the upper housing part 10.1.
  • the measuring unit 13 has a torque sensor and a rotation angle sensor.
  • the torque sensor has the function of measuring the torque M exerted by the screwing tool 2 during the screwing simulation.
  • the torque sensor is attached to the rotating body 11.2.
  • the torque sensor is preferably a strain gauge.
  • the strain gauge detects an extension or compression of the rotating body 11.2 caused by the torque M.
  • the rotation angle sensor has the function of measuring the angle of rotation by which the test connection unit 11 rotates about the rotation axis Z during the screw joint simulation.
  • the rotation angle sensor comprises a sensor element and a measuring disk.
  • the sensor element is attached to the upper housing part 10.1, the measuring disk is attached to the rotating body 11.2.
  • the measuring disk has angle marks and the sensor element detects the angle marks rotating about the rotation axis Z during the screw joint simulation.
  • the converter unit 14 is arranged to a large extent in the cavity of the upper housing part 10.1 and to a small extent in the cavity of the housing pot 10.2.
  • the converter unit 14 has a spindle 14.1, a nut 14.2, a bushing 14.3 and a return spring element 14.4.
  • the converter unit 14 is attached to the test connection unit 11.
  • the function of the converter unit 14 is to absorb the torque M exerted by the screwing tool 2 during the screwing simulation and to convert it into a braking force F and to apply the braking force F to the braking unit 12.
  • the spindle 14.1 is cylindrical and extends along the axis of rotation Z.
  • the nut 14.2 is hollow cylindrical and is arranged on the circumference of the spindle 14.1. In a plane perpendicular to the axis of rotation Z, the nut 14.1 completely encloses the circumference of the spindle 14.1.
  • the spindle 14.1 and nut 14.2 are connected to one another via a positive connection.
  • the positive connection transfers a rotary movement of the spindle 14.1 about the axis of rotation Z into a longitudinal movement of the nut. 14.2 along the rotation axis Z.
  • the spindle 14.1 and the nut 14.2 form a ball screw, a roller screw, etc.
  • the spindle 14.1 is then a threaded spindle and the nut 14.2 is then a threaded nut.
  • Rolling elements 14.5 such as balls or rollers form the positive connection between the threaded spindle and the threaded nut.
  • the threaded spindle has a raceway on its circumference.
  • the threaded nut has a return.
  • the rolling elements 14.5 move in the raceway of the threaded spindle and in the return of the threaded nut.
  • the rolling elements 14.5 transfer a rotary movement of the threaded spindle about the axis of rotation Z into a movement of the threaded nut along the axis of rotation Z. Due to the very low rolling friction of the rolling elements 14.5, the ball screw or the roller screw has no self-locking.
  • the bushing 14.3 is connected to the rotating body 11.2 via a mechanical connection 14.31.
  • the mechanical connection 14.31 transfers the torque M exerted by the screwing tool 2 from the rotating body 11.2 to the bushing 14.3.
  • the mechanical connection 14.31 is a toothing in which the bushing 14.3 and the rotating body 11.2 are provided with teeth, which teeth engage with one another and form the toothing.
  • the spindle 14.1 has an end close to the screwing tool along the rotation axis Z. At the end close to the screwing tool, the spindle 14.1 is attached to the bushing 14.3 via a further mechanical connection 14.11.
  • the further mechanical connection 14.11 transmits the force exerted by the screwing tool 2. Torque M from the bushing 14.3 to the spindle 14.1.
  • the further mechanical connection 14.11 is via a key-screw connection.
  • the screw connects the spindle 14.1 and the bushing 14.3 to one another and the key secures this connection.
  • the screw has a thread with a thread pitch.
  • the screw Under the effect of the torque M exerted by the screwing tool 2 and depending on the thread pitch, the screw is movable along the axis of rotation Z and results in a longitudinal movement of the bushing 14.3 in the direction away from the screwing tool 2 of less than or equal to 10 mm.
  • the return spring element 14.4 is arranged on the upper housing part 10.1. Preferably, an end of the return spring element 14.4 close to the screwing tool mechanically contacts the upper housing part 10.1, while an end of the return spring element 14.4 remote from the screwing tool mechanically contacts the nut 14.2.
  • the nut 14.2 is arranged further away from the screwing tool 2 than the return spring element 14.4 and the brake piston 12.2.
  • the nut 14.2 has a bearing and a pressure sleeve 14.21 at its end closest to the screwing tool.
  • the bearing serves to ensure that the nut 14.1 does not tilt during the movement along the axis of rotation Z mediated by the rolling elements 14.5.
  • the nut 14.2 is in mechanical contact with the return spring element 14.4 and with the brake piston 12.2 via the pressure sleeve 14.21.
  • the pressure sleeve 14.21 has a contact surface extending in a plane perpendicular to the axis of rotation Z. The mechanical Contact is made with both the return spring element 14.4 and the brake piston 12.2.
  • the holding unit 15 is arranged on the housing 10.
  • the holding unit 15 has a drive 15.1 and a holding element 15.2.
  • the holding unit 15 has the function of holding the nut 14.2 for a directed movement along the axis of rotation Z in the direction of the screwing tool 2.
  • the drive 15.1 is attached to the outside of the upper housing part 10.1.
  • the drive 15.1 is preferably a lifting magnet.
  • the drive 15.1 and the holding element 15.2 are mechanically connected to one another.
  • the drive 15.1 and the holding element 15.2 extend along a radial axis X.
  • the radial axis X is perpendicular to the axis of rotation Z.
  • the holding element 15.2 projects through an external opening in the housing 10 into the cavity of the housing 10.
  • the holding element 15.2 preferably has a feather key.
  • the holding unit 15 can be activated and deactivated.
  • the drive 15.1 moves the holding element 15.2 between a rest position 15.2* and a holding position 15.2+.
  • the holding element 15.2 assumes the rest position 15.2*.
  • the drive 15.1 has moved the holding element 15.2 over a travel ⁇ x along the radial axis X against the nut 14.2.
  • the holding element 15.2 now assumes a holding position 15.2+.
  • the holding element 15.2 is in direct mechanical contact with the nut 14.2.
  • the travel ⁇ x along the radial axis X is less than or equal to 10mm.
  • the holding element 15.2 in the holding position 15.2+ with the nut 14.2 mechanically contacted retaining element 15.2 holds the nut 14.2 in a form-fitting manner (see Fig. 2 to 4 ).
  • the positive locking H prevents the nut 14.2 from moving along the axis of rotation Z in the direction away from the screwing tool 2.
  • the positive locking H allows the nut 14.2 to move along the axis of rotation Z in the direction towards the screwing tool 2.
  • the nut 14.2 assumes a nut starting position 14.2*. From the nut starting position 14.2*, the nut 14.2 can cover a nut stroke ⁇ z1 along the axis of rotation Z of preferably less than or equal to 25mm in the direction of the screwing tool 2.
  • the movement of the nut 14.2 along the axis of rotation Z in the direction of the screwing tool 2 is, however, limited by the brake piston 12.2.
  • the nut 14.2 covers the nut stroke ⁇ z1 along the axis of rotation Z and is then in a nut end position 14.2+ with respect to the return spring element 14.4 and with respect to the brake piston 12.2.
  • the pressure sleeve 14.21 compresses the return spring element 14.4 and applies a braking force F to the brake piston 12.2.
  • the spindle 14.1 has an end along the rotation axis Z that is remote from the screwing tool.
  • the spindle 14.1 has a spindle contact surface 14.12 at the end remote from the screwing tool.
  • the spindle 14.1 is in direct mechanical contact with the brake spring elements 12.3 in the housing pot 10.2 via the spindle contact surface 14.12.
  • the spindle contact surface 14.12 extends in a plane perpendicular to the rotation axis Z.
  • the nut 14.2 is now in the nut end position 14.2+ and the screwing tool 2 continues to drive the spindle 14.1 to rotate around the axis of rotation Z, the nut 14.2 and spindle 14.1 are mechanically clamped against each other.
  • the bushing 14.3 moves under the effect of the torque M exerted by the screwing tool 2 along the axis of rotation Z in the direction away from the screwing tool 2.
  • the spindle 14.1 mechanically connected to the bushing 14.3 also moves along the axis of rotation Z in the direction away from the screwing tool 2.
  • the spindle contact surface 14.12 leaves a spindle starting position 14.1* and moves along the axis of rotation Z into a spindle end position 14.1+, which leads to a compression of the brake spring elements 12.3.
  • the screwing tool 2 no longer exerts a torque M.
  • the holding unit 15 is deactivated, where the holding element 15.2 is moved by the drive 15.1 from the holding position 15.2+ back to the rest position 15.2*, is the nut 14.2 no longer in the positive hold H.
  • the brake spring elements 12.3 decompress, which results in a spring force R.
  • the spring force R acts on the spindle 14.1 via the spindle contact surface 14.12.
  • the bushing 14.3 and the spindle 14.1 move along the axis of rotation Z in the direction away from the screwing tool. 2.
  • the spindle contact surface 14.12 leaves the spindle end position 14.1+ and moves automatically along the rotation axis Z to the spindle starting position 14.1+ (see Fig. 5 and 6 ). Further time-consuming measures to reset the simulation device 1 are therefore not necessary, which is cost-effective.
  • the return spring element 14.4 decompresses and, with a return spring force RR resulting from the decompression, causes the nut 14.2 to leave the nut end position 14.2+ and automatically return to the nut starting position 14.2+ (see Fig. 5 and 6 ).
  • the return spring force RR is selected to be so large that the nut 14.2 returns to the nut starting position 14.2+ particularly quickly under the effect of the return spring force RR, which is time- and cost-effective.
  • the method for carrying out the screw case simulation of the screwing tool 2 using the simulation device 1 now comprises the following steps:
  • a nominal value S is set on the screwing tool 2 and the screwing tool 2 is coupled to the simulation device 1 via the test connection unit 11.
  • the screwing tool 2 is not yet activated and does not rotate around the axis of rotation Z and does not yet exert any torque M.
  • the holding element 15.2 assumes the rest position 15.2* (see Fig. 2a ).
  • the nut 14.2 is in the nut starting position 14.2* (see Fig. 3a ).
  • the spindle 14.1 is in the spindle starting position 14.1* (see Fig. 4a ).
  • the screwing tool 2 is activated. Shortly (within 2 seconds) after activation of the screwing tool 2, the holding unit 15 is activated and the holding element 15.2 is moved by the drive 15.1 into the holding position 15.2+ and the nut 14.2 is in the positive hold H in the nut starting position 14.2* (see also Fig. 2b and 3a ). The spindle 14.1 is still in the spindle starting position 14.1* (see Fig. 4a ).
  • a third step after Fig. 3 the activated screwing tool 2 rotates about the axis of rotation Z and exerts a torque M.
  • the test connection element 11.1 coupled to the screwing tool 2 transmits the rotational movement about the axis of rotation Z via the rotating body 11.2 to the bushing 14.3.
  • the torque M is absorbed by the converter unit 14 via the mechanical connection 14.31.
  • the rotational movement about the axis of rotation Z is transmitted from the bushing 14.3 to the spindle 14.1.
  • the rotational movement of the spindle 14.1 about the axis of rotation Z leads to a movement of the nut 14.2 along the axis of rotation Z.
  • the converter unit 14 converts the exerted torque M.
  • the positive hold H of the nut 14.2 prevents a movement of the nut 14.2 along the axis of rotation Z in the direction away from the screwing tool 2.
  • the nut 14.2 thus carries out a movement along the axis of rotation Z in the direction towards the screwing tool 2.
  • the nut 14.2 leaves the nut starting position 14.1* and moves along the rotation axis Z to the nut end position 14.2+ (see Fig. 3a and 3b ).
  • the nut 14.2 moved into the nut end position 14.2+ converts the applied torque M into the braking force F.
  • the converter unit 14 thus converts the applied torque M into the braking force F.
  • the nut 14.2 compresses the return spring element 14.4.
  • the converter unit 14 thus applies the braking force F to the brake unit 12.
  • the brake piston 12.2, which is subjected to the braking force F, is movable along the axis of rotation Z and brings the brake disk elements 12.1 into frictional contact.
  • the brake disk elements 12.1 brake the torque M exerted by the screwing tool 2.
  • the measuring unit 13 measures the torque M exerted by the screwing tool 2 and the angle of rotation by which the test connection unit 11 rotates about the axis of rotation Z.
  • the holding element 15.2 remains in the holding position 15.2+ (see Fig. 2b ).
  • the spindle 14.1 is still in the spindle starting position 14.1*.
  • a fourth step after Fig. 4 the screwing tool 2 increases the applied torque M until the set nominal value S is reached.
  • the screwing tool 2 rotates the spindle 14.1 around the axis of rotation Z. Since the nut 14.2 is in the nut end position 14.2+, the nut 14.2 and spindle 14.1 are mechanically clamped against each other. As a result of the mechanical clamping, the bushing 14.3 moves the spindle 14.1 from the spindle starting position 14.1* to the spindle end position 14.1+ and compresses the brake spring elements 12.3 (see Fig. 4a and 4b ).
  • the unit of measurement 13 measures the torque M exerted by the screwing tool 2 and the angle of rotation by which the test connection unit 11 rotates about the axis of rotation Z.
  • a fifth step after Fig. 5 the screwing tool 2 has reached the set nominal size S and deactivates the rotational movement of the test connection unit 11 about the rotation axis Z and the application of the torque M.
  • the coupling of the screwing tool 2 with the test connection element 11.1 is released.
  • the screwing tool 2 is removed from the simulation device 1.
  • the holding element 15.2 remains in the holding position 15.2+ (see Fig. 2b ).
  • the nut 14.2 remains in the nut end position 14.2+ (see Fig. 3b ).
  • a sixth step after Fig. 6 the holding unit 15 is deactivated and the holding element 15.2 is moved by the drive 15.1 from the holding position 15.2+ back to the rest position 15.2*.
  • the nut 14.2 is no longer in the positive hold H.
  • the return spring element 14.4 decompresses and moves the nut 14.2 with the return spring force RR along the axis of rotation Z into the nut starting position 14.2+ (see Fig. 5 and 6 ).
  • the frictional engagement of the brake disc elements 12.1 is released and the brake piston 12.2 moves away from the brake disc elements 12.1 along the axis of rotation Z (see Fig. 5 and 6 ).
  • the brake spring elements 12.3 decompress, resulting in a spring force R.
  • the spring force R causes the bushing 14.3 and the spindle 14.1 to move from the spindle end position 14.1+ along the axis of rotation Z back to the spindle starting position 14.1*, which the bushing 14.3 and the spindle 14.1 in the illustration according to Fig. 6 to reach.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Braking Arrangements (AREA)

Claims (13)

  1. Dispositif de simulation (1) pour simuler le cas de vissage d'un outil de vissage (2); comprenant une unité de raccordement pour essai (11) par laquelle l'outil de vissage (2) peut être couplé au dispositif de simulation (1), dans lequel ledit outil de vissage (2) peut être activé et, dans l'état activé et couplé à l'unité de raccordement pour essai (11), fait tourner l'unité de raccordement pour essai (11) autour d'un axe de rotation (Z) et exerce un couple (M) sur l'unité de raccordement pour essai (11); comprenant une unité de mesure (13) pour mesurer le couple (M) exercé sur ladite unité de raccordement pour essai (11) par l'outil de vissage (2) dans l'état activé et couplé à l'unité de raccordement pour essai (11), et pour mesurer l'angle de rotation selon lequel l'unité de raccordement pour essai (11) est tournée autour de l'axe de rotation (Z) par l'outil de vissage (2) activé à l'état couplé; et comprenant une unité de freinage (12) pour freiner le couple (M) exercé sur l'unité de raccordement pour essai (11) par l'outil de vissage (2) à l'état activé et couplé à l'unité de raccordement pour essai (11); en ce que le dispositif de simulation (1) comprend une unité de transducteur (14), laquelle unité de transducteur (14) est reliée mécaniquement à l'unité de raccordement pour essai (11), laquelle unité de transducteur (14) reçoit le couple (M) exercé par l'outil de vissage (2) à l'état activé et couplé à l'unité de raccordement pour essai (11) sur l'unité de raccordement pour essai (11) et le convertit en une force de freinage (F) et applique ladite force de freinage (F) à l'unité de freinage (12) ; caractérisé en ce que l'unité de transducteur (14) comprend une broche (14.1) et un écrou (14.2), ladite broche (14.1) et ledit écrou (14.2) étant reliés l'un à l'autre par une compatibilité des formes, laquelle compatibilité des formes convertit un mouvement de rotation de la broche (14.1) autour de l'axe de rotation (Z) en un mouvement longitudinal de l'écrou (14.2) le long de l'axe de rotation (Z) ; en ce que l'écrou (14.2) déplacé le long de l'axe de rotation (Z) convertit un couple (M) exercé sur l'unité de raccordement pour essai (11) par l'outil de vissage (2) à l'état activé et couplé à l'unité de raccordement pour essai (11) en une force de freinage (F) et applique la force de freinage (F) à l'unité de freinage (12) ; en ce que l'unité de transducteur (14) comprend des éléments roulants (14.5) ; en ce que la broche (14.1) est une broche filetée ; en ce que l'écrou (14.2) est un écrou fileté ; en ce que les éléments roulants (14.5) forment la compatibilité des formes entre la broche filetée (14.1) et l'écrou fileté (14.2) ; et en ce que les éléments roulants (14.5) convertissent le mouvement de rotation de la broche filetée (14.1) autour de l'axe de rotation (Z) en le mouvement longitudinal de l'écrou fileté (14.2) le long de l'axe de rotation (Z).
  2. Dispositif de simulation (1) selon la revendication 1, caractérisé en ce que le dispositif de simulation (1) comprend une unité de retenue (15), laquelle unité de retenue (15) peut être activée ; et en ce que l'unité de retenue (15) activée retient l'écrou (14.2) par compatibilité des formes (H), et le fait qu'il est retenu par compatibilité des formes (H) ne permet qu'un mouvement longitudinal de l'écrou (14.2) à partir d'une position de départ de l'écrou (14.2*) le long de l'axe de rotation (Z) en direction vers l'outil de vissage (2) jusqu'à une position finale de l'écrou (14.2+).
  3. Dispositif de simulation (1) selon la revendication 2, caractérisé en ce que l'unité de freinage (12) comprend une pluralité d'éléments de disque de frein (12.1) et un piston de frein (12.2) ; en ce que l'écrou déplacé longitudinalement dans la position finale de l'écrou (14.2+) applique la force de freinage (F) au piston de frein (12.2) ; et en ce que le piston de frein (12.2) sur lequel la force de freinage (F) est appliquée amène les éléments de disque de frein (12.1) en contact par friction.
  4. Dispositif de simulation (1) selon l'une quelconque des revendications 2 ou 3, caractérisé en ce que l'unité de transducteur (14) comprend un élément de ressort de rappel (14.4) ; et en ce que l'écrou (14.2) déplacé longitudinalement jusqu'à la position finale de l'écrou (14.2+) comprime l'élément de ressort de rappel (14.4).
  5. Dispositif de simulation (1) selon l'une quelconque des revendications 2 à 4, caractérisé en ce que, pendant un mouvement de rotation de la broche (14.1) autour de l'axe de rotation (Z), l'écrou (14.2) déplacé longitudinalement dans la position finale de l'écrou (14.2+) et la broche (14.1) se serrent l'un contre l'autre et la broche (14.1) se déplace longitudinalement à partir d'une position de départ de la broche (14.1*) le long de l'axe de rotation (Z) jusqu'à une position finale de la broche (14.1+) ; en ce que l'unité de freinage (12) comprend une pluralité d'éléments de ressort de freinage (12.3) ; et en ce que la broche (14.1) déplacée longitudinalement le long de l'axe de rotation (Z) jusqu'à la position finale de la broche (14.1+) comprime les éléments de ressort de freinage (12.3).
  6. Dispositif de simulation (1) selon la revendication 5, caractérisé en ce que les éléments de ressort de freinage (12.3) sont disposés dans un pot de boîtier (10.2) ; en ce que, en fonction du couple (M) exercé par l'outil de vissage (2) activé jusqu'à un couple nominal et/ou un angle de rotation nominal prédéfinis, un nombre variable d'éléments de ressort de freinage (12.3) sont disposés dans le pot de boîtier (10.2) ; et/ou en ce que, en fonction du couple (M) exercé par l'outil de vissage (2) activé jusqu'à un couple nominal et/ou un angle de rotation nominal prédéfinis, des éléments de ressort de freinage (12.3) de rigidité différente sont disposés dans le pot de boîtier (10.2).
  7. Dispositif de simulation (1) selon l'une quelconque des revendications 5 ou 6, caractérisé en ce que les éléments de ressort de freinage (12.3) sont disposés dans un pot de boîtier (10.2) ; et en ce que le pot de boîtier (10.2) peut être ouvert au moyen d'une fermeture rapide et les éléments de ressort de freinage (12.3) peuvent être remplacés dans le pot de boîtier (10.2) ouvert.
  8. Procédé pour réaliser une simulation du cas de vissage d'un outil de vissage (2) en utilisant le dispositif de simulation (1) selon l'une quelconque des revendications 1 à 7, caractérisé par les étapes suivantes dans lesquelles dans une première étape, on couplé l'outil de vissage (2) par l'intermédiaire de l'unité de raccordement pour essai (11) au dispositif de simulation (1); dans une deuxième étape, on active l'outil de vissage (2), ledit outil de vissage (2) activé fait tourner l'unité de raccordement pour essai (11) autour de l'axe de rotation (Z) et exerce un couple (M) sur l'unité de raccordement pour essai (11); dans une troisième étape, le couple (M) exercé par l'outil de vissage (2) est reçu par l'unité de transducteur (14) et converti en une force de freinage (F); et en ce que dans la troisième étape, la force de freinage (F) est appliquée à l'unité de freinage (12) par l'unité de transducteur (14).
  9. Procédé selon la revendication 8, caractérisé en ce que l'unité de transducteur (14) comprend une broche (14.1) et un écrou (14.2), ladite broche (14.1) et ledit écrou (14.2) étant reliés l'un à l'autre par compatibilité des formes, et en ce que dans la troisième étape, du fait de la compatibilité des formes, un mouvement de rotation de la broche (14.1) autour de l'axe de rotation (Z) est converti en un mouvement longitudinal de l'écrou (14.2) d'une position de départ de l'écrou (14.2*) le long de l'axe de rotation (Z) jusqu'à une position finale de l'écrou (14.2+) ; et en ce que dans la troisième étape, l'écrou (14.2) déplacé longitudinalement dans la position finale de l'écrou (14.2+) convertit le couple (M) exercé par l'outil de vissage (2) en la force de freinage (F).
  10. Procédé selon la revendication 9, caractérisé en ce que le dispositif de simulation (1) comprend une unité de retenue (15), laquelle unité de retenue (15) est activée dans la deuxième étape ; en ce que l'écrou (14.2) est retenu par l'unité de retenue (15) activée par une compatibilité des formes (H), le fait qu'il est retenu par compatibilité des formes (H) ne permet qu'un mouvement longitudinal de l'écrou (14.2) à partir de la position de départ de l'écrou (14.2*) le long de l'axe de rotation (Z) en direction vers l'outil de vissage (2) jusqu'à la position finale de l'écrou (14.2+).
  11. Le procédé selon la revendication 10, caractérisé en ce que l'unité de freinage (12) comprend une pluralité d'éléments de disque de frein (12.1) et un piston de frein (12.2), et en ce que dans la troisième étape, la force de freinage (F) est appliquée sur le piston de frein (12.2) par l'écrou (14.2) déplacé longitudinalement dans la position finale de l'écrou (14.2+) ; et en ce que dans la troisième étape, le piston de frein (12.2) sur lequel la force de freinage (F) est appliquée amène les éléments de disque de frein (12.1) en contact par friction.
  12. Procédé selon l'une quelconque des revendications 10 ou 11, caractérisé en ce que l'unité de transducteur (14) comprend un élément de ressort de rappel (14.4), lequel élément de ressort de rappel (14.4) est comprimé dans la troisième étape par l'écrou (14.2) déplacé longitudinalement dans la position finale de l'écrou (14.2+) ; en ce que, dans une sixième étape, l'unité de retenue (15) est désactivée et l'écrou (14.2) n'est plus retenu par compatibilité des formes (H) par l'unité de retenue (15) désactivée ; en ce que, à cause du fait que l'écrou (14.2) n'est plus retenu par compatibilité des formes (H), l'élément de ressort de rappel (14.4) comprimé est décomprimé et une force de ressort de rappel (RR) est exercée par l'élément de ressort de rappel (14.4) décomprimé sur l'écrou (14.2) ; et en ce que dans la sixième étape, l'écrou (14.2) est déplacé de la position finale de l'écrou (14.2+) le long de l'axe de rotation (Z) jusqu'à la position de départ de l'écrou (14.2*) par ladite force du ressort de rappel (RR).
  13. Procédé selon l'une quelconque des revendications 10 à 12, caractérisé en ce que, pendant un mouvement de rotation de la broche (14.1) autour de l'axe de rotation (Z), l'écrou (14.2) déplacé longitudinalement dans la position finale de l'écrou (14.2+) et la broche (14.1) sont serrés l'un contre l'autre et la broche (14.1) est déplacée longitudinalement le long de l'axe de rotation (Z) d'une position de départ de la broche (14.1) jusqu'à une position finale de la broche (14.1+) ; en ce que l'unité de freinage (12) comporte une pluralité d'éléments de ressort de freinage (12.3) ; et en ce que la broche (14.1) déplacée longitudinalement dans la position finale de la broche (14.1+) comprime les éléments de ressort de freinage (12.3) ; en ce que dans une sixième étape, l'outil de vissage (2) est désactivé et l'outil de vissage (2) désactivé ne produit plus de couple (M) ; en ce que, à cause du fait que l'écrou (14.2) n'est plus retenu par compatibilité des formes (H), les éléments de ressort de freinage (12.3) se décompressent et une force de ressort (R) est exercée par les éléments de ressort (12.3) décomprimés ; et en ce que dans la sixième étape, la broche (14.1) est déplacée le long de l'axe de rotation (Z) de la position finale de la broche (14.1+) jusqu'à la position de départ de la broche (14.1*) par ladite force de ressort (R).
EP22178966.2A 2021-07-14 2022-06-14 Dispositif de simulation pour la simulation d'assemblage vissé d'un outil de vissage Active EP4119915B1 (fr)

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CN115609518A (zh) 2023-01-17
EP4119915A1 (fr) 2023-01-18
JP2023014000A (ja) 2023-01-26
JP2024164075A (ja) 2024-11-26

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